From mboxrd@z Thu Jan 1 00:00:00 1970 From: Davidlohr Bueso Subject: [PATCH 5/6] net/ipv4: Update ip_tunnel_metadata_cnt static key to modern api Date: Mon, 26 Mar 2018 14:09:28 -0700 Message-ID: <20180326210929.5244-6-dave@stgolabs.net> References: <20180326210929.5244-1-dave@stgolabs.net> Cc: linux-kernel@vger.kernel.org, Davidlohr Bueso , "David S . Miller" , netdev@vger.kernel.org, Davidlohr Bueso To: peterz@infradead.org, mingo@kernel.org, akpm@linux-foundation.org Return-path: In-Reply-To: <20180326210929.5244-1-dave@stgolabs.net> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org No changes in refcount semantics -- key init is false; replace static_key_slow_inc|dec with static_branch_inc|dec static_key_false with static_branch_unlikely Added a '_key' suffix to i2c_trace_msg, for better self documentation. Cc: David S. Miller Cc: netdev@vger.kernel.org Signed-off-by: Davidlohr Bueso --- include/net/ip_tunnels.h | 4 ++-- net/ipv4/ip_tunnel_core.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h index 540a4b4417bf..fc494b48a64a 100644 --- a/include/net/ip_tunnels.h +++ b/include/net/ip_tunnels.h @@ -466,12 +466,12 @@ static inline struct ip_tunnel_info *lwt_tun_info(struct lwtunnel_state *lwtstat return (struct ip_tunnel_info *)lwtstate->data; } -extern struct static_key ip_tunnel_metadata_cnt; +DECLARE_STATIC_KEY_FALSE(ip_tunnel_metadata_cnt); /* Returns > 0 if metadata should be collected */ static inline int ip_tunnel_collect_metadata(void) { - return static_key_false(&ip_tunnel_metadata_cnt); + return static_branch_unlikely(&ip_tunnel_metadata_cnt); } void __init ip_tunnel_core_init(void); diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c index 2f39479be92f..dde671e97829 100644 --- a/net/ipv4/ip_tunnel_core.c +++ b/net/ipv4/ip_tunnel_core.c @@ -423,17 +423,17 @@ void __init ip_tunnel_core_init(void) lwtunnel_encap_add_ops(&ip6_tun_lwt_ops, LWTUNNEL_ENCAP_IP6); } -struct static_key ip_tunnel_metadata_cnt = STATIC_KEY_INIT_FALSE; +DEFINE_STATIC_KEY_FALSE(ip_tunnel_metadata_cnt); EXPORT_SYMBOL(ip_tunnel_metadata_cnt); void ip_tunnel_need_metadata(void) { - static_key_slow_inc(&ip_tunnel_metadata_cnt); + static_branch_inc(&ip_tunnel_metadata_cnt); } EXPORT_SYMBOL_GPL(ip_tunnel_need_metadata); void ip_tunnel_unneed_metadata(void) { - static_key_slow_dec(&ip_tunnel_metadata_cnt); + static_branch_dec(&ip_tunnel_metadata_cnt); } EXPORT_SYMBOL_GPL(ip_tunnel_unneed_metadata); -- 2.13.6